<template>
    <div>
        <div class="crumbs">
            <el-breadcrumb separator="/">
                <el-breadcrumb-item>
                    <i class="el-icon-lx-cascades"></i> 学生管理
                </el-breadcrumb-item>
            </el-breadcrumb>
        </div>
        <div class="container">
            <div class="handle-box">
                <el-button
                    type="primary"
                    icon="el-icon-delete"
                    class="handle-del mr10"
                    @click="delAllSelection"
                >批量删除</el-button>
                <el-input v-model="query.studentName" placeholder="请输入学生姓名" class="handle-input mr10"></el-input>
                <el-button type="primary" icon="el-icon-search" @click="handleSearch">搜索</el-button>
                <el-button type="primary" icon="el-icon-plus" class="mr10" @click="handleAdd">新增</el-button>
            </div>
            <el-table
                :data="tableData"
                border
                class="table"
                ref="multipleTable"
                header-cell-class-name="table-header"
                @selection-change="handleSelectionChange"
            >
                <el-table-column type="selection" width="55" align="center"></el-table-column>
                <el-table-column prop="studentId" label="学生ID" width="150" align="center"></el-table-column>
                <el-table-column prop="chineseName" label="中文名"></el-table-column>
                <el-table-column prop="englishName" label="英文名"></el-table-column>
                <el-table-column prop="tel" label="联系方式"></el-table-column>
                <el-table-column prop="className" label="班级名称"></el-table-column>
            
                <el-table-column label="是否在籍">
                    <template slot-scope="scope">
                        <span v-if="scope.row.stuStatus == 'A'">在籍</span>
                        <span v-if="scope.row.stuStatus == 'L'">离校</span>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180" align="center">
                    <template slot-scope="scope">
                        <el-button
                            type="text"
                            icon="el-icon-edit"
                            @click="addOrUpdateHandler(scope.row)"
                        >编辑</el-button>
                        <el-button
                            type="text"
                            icon="el-icon-delete"
                            class="red"
                            @click="deleteHandler(scope.row.id)"
                        >删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <div class="pagination">
                <el-pagination
                    background
                    layout="total, prev, pager, next"
                    :current-page="query.pageIndex"
                    :page-size="query.pageSize"
                    :total="pageTotal"
                    @current-change="handlePageChange"
                ></el-pagination>
            </div>
        </div>

        <!-- 编辑弹出框 -->
        <el-dialog :visible.sync="editVisible" width="30%">
            <el-form ref="form" :model="form" label-width="70px">
                <el-form-item label="中文名">
                    <el-input v-model="form.chineseName"></el-input>
                </el-form-item>
                <el-form-item label="英文名">
                    <el-input v-model="form.englishName"></el-input>
                </el-form-item>
                <el-form-item label="密码">
                    <el-input type="password" v-model="form.password"></el-input>
                </el-form-item>
                <el-form-item label="联系方式">
                    <el-input v-model="form.tel"></el-input>
                </el-form-item>
                <el-form-item label="班级">
                    <el-select v-model="form.stuClass" placeholder="请选择">
                        <el-option
                            v-for="(item,index) in clazzList"
                            v-bind:key="index"
                            :label="item.clazzName"
                            :value="item.clazzCode">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="是否在籍">
                    <el-select v-model="form.stuStatus" placeholder="请选择">
                        <el-option
                            v-for="(item,index) in statusOptions"
                            v-bind:key="index"
                            :label="item.label"
                            :value="item.val">
                        </el-option>
                    </el-select>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editVisible = false">取 消</el-button>
                <el-button type="primary" @click="handleSave()">确 定</el-button>
            </span>
        </el-dialog>
        
    </div>
</template>

<script>
import { saveStudent, getStudentData, delStudent, getAllClazz } from '../../api/index';
export default {
    name: 'basetable',
    data() {
        return {
            query: {
                clazzCode: localStorage.getItem('clazzCode') == "null" ? "" : localStorage.getItem('clazzCode'),
                studentName: '',
                pageIndex: 1,
                pageSize: 10
            },
            isAdd: false,
            clazzList: [],
            tableData: [],
            role: localStorage.getItem('role'),
            sexOptions: [{ val: 1, label: "男" }, { val: 0, label: "女" }],
            statusOptions: [{ val: "A", label: "在籍" }, { val: "L", label: "离校" }],
            multipleSelection: [],
            delList: [],
            editVisible: false,
            pageTotal: 0,
            form: {
            },
            idx: -1,
            id: -1
        };
    },
    created() {
        this.getData();
        this.getAllClazz();
    },
    methods: {
        getAllClazz() {
            getAllClazz().then(res => {
                if (res.code == 0 || res.code == 200) {
                    this.clazzList = res.data;
                } else {
                    this.$message.success('添加失败');
                }
            });
        },
        addOrUpdateHandler(row) {
            this.form = row
            this.isAdd = true;
            this.editVisible = true
        },
        deleteHandler(id) {
            let param = {
                'ids': id
            }
            delStudent(param).then(res => {
                if (res.code == 0 || res.code == 200) {
                    this.$message.success('删除成功');
                    this.getData()
                } else {
                }
            });
        },
        handleSave() {
            this.isAdd = false;
            let clazzCode = this.form.stuClass;
            for (let i = 0; i < this.clazzList.length;i++) {
                if (clazzCode == this.clazzList[i]['clazzCode']) {
                    this.form.className = this.clazzList[i]['clazzName']
                }
            }
            saveStudent(this.form).then(res => {
                if (res.code == 0 || res.code == 200) {
                    this.$message.success('添加成功');
                    this.editVisible = false
                    this.getData()
                } else {
                    this.$message.success('添加失败');
                }
            });
        },
        handleAdd() { 
            this.form = {}
            this.editVisible = true
        },
        // 获取 easy-mock 的模拟数据
        getData() {
            getStudentData(this.query).then(res => {
                this.tableData = res.data.list;
                this.pageTotal = res.data.totalCount;
            });
        },
        // 触发搜索按钮
        handleSearch() {
            this.$set(this.query, 'pageIndex', 1);
            this.getData();
        },
        // 删除操作
        handleDelete(index, row) {
            // 二次确认删除
            this.$confirm('确定要删除吗？', '提示', {
                type: 'warning'
            })
                .then(() => {
                    this.$message.success('删除成功');
                    this.tableData.splice(index, 1);
                })
                .catch(() => {});
        },
        // 多选操作
        handleSelectionChange(val) {
            this.multipleSelection = val;
        },
        delAllSelection() {
            const length = this.multipleSelection.length;
            let str = '';
            this.delList = this.delList.concat(this.multipleSelection);
            for (let i = 0; i < length; i++) {
                str += this.multipleSelection[i].id + ',';
            }
            this.deleteHandler(str)
            this.multipleSelection = [];
        },
        // 编辑操作
        handleEdit(index, row) {
            this.idx = index;
            this.form = row;
            this.editVisible = true;
        },
        // 保存编辑
        saveEdit() {
            this.editVisible = false;
            this.$message.success(`修改第 ${this.idx + 1} 行成功`);
            this.$set(this.tableData, this.idx, this.form);
        },
        // 分页导航
        handlePageChange(val) {
            this.$set(this.query, 'pageIndex', val);
            this.getData();
        }
    }
};
</script>

<style scoped>
.handle-box {
    margin-bottom: 20px;
}

.handle-select {
    width: 120px;
}

.handle-input {
    width: 300px;
    display: inline-block;
}
.table {
    width: 100%;
    font-size: 14px;
}
.red {
    color: #ff0000;
}
.mr10 {
    margin-right: 10px;
}
.table-td-thumb {
    display: block;
    margin: auto;
    width: 40px;
    height: 40px;
}
</style>
